Here is my weekly weather quiz question for the last time. What is “The International Date Line? Here is the correct answer. The International Date Line is the line of longitude located at 180 degrees East or West (with a few local deviations) where the date changes by a day. West of the line it is one day later than east of the line.
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An Upper Level Low Pressure Trough (“U “shape) moves in to return moisture and another frontal system. The graphics for days 1-3 show the next frontal system moving toward the Pacific Northwest. The graphics for days 3-7 show more frontal activity moving our way Wednesday through next Sunday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 69 in the Moderate category measuring Particulate Matter.
Oakridge: The Air Quality Index is 59 in the Moderate category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 56 in the Moderate category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
NOTE: Outdoor burning remains temporarily prohibited for the following areas: Eugene-Springfield, Florence, Lowell, Oakridge and UGB, and Springfield and UGB.
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ADVISORIES:
- A WINTER STORM WATCH IS IN EFFECT FROM MONDAY MORNING THROUGH TUESDAY AFTERNOON FOR THE COAST RANGE OF NORTHWEST OREGON, THE CENTRAL COAST RANGE OF WESTERN OREGON, THE NORTHERN OREGON CASCADE FOOTHILLS, AND THE CASCADE FOOTHILLS IN LANE COUNTY.
- A WINTER STORM WATCH IS IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY AFTERNOON FOR THE NORTHERN OREGON CASCADES AND THE CASCADES IN LANE COUNTY.
- A WINTER STORM WATCH IS IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY AFTERNOON FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS AND THE SOUTH CENTRAL OREGON CASCADES.
- A WINTER STORM WATCH IS IN EFFECT FROM MONDAY MORNING THROUGH TUESDAY AFTERNOON ABOVE 1,500 FT. FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, AND JACKSON COUNTY.
- A WINTER STORM WATCH IS IN EFFECT FROM LATE TONIGHT THROUGH THROUGH LATE MONDAY NIGHT ABOVE 4,500 FT. FOR THE EAST SLOPES OF THE OREGON CASCADES.
- A WINTER STORM WATCH IS IN EFFECT FROM MONDAY MORNING THROUGH TUESDAY AFTERNOON FOR THE SISKIYOU MOUNTAINS, AND THE SOUTHERN OREGON CASCADES.
- A BEACH HAZARDS STATEMENT IS IN EFFECT FOR DANGEROUS SNEAKER WAVES THIS MORNING THROUGH THIS EVENING FOR THE BEACHES OF THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
HEALTH ADVISORIES:
- A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE RIVER.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Patchy dense AM fog, partly cloudy and a bit warmer this afternoon, becoming mostly cloudy a slight (20%) chance of evening showers, showers likely (70%) late tonight (under 0.10 in. of rain possible),
- Mostly cloudy with showers and a bit cooler Monday and a slight (20%) chance of afternoon thunderstorms (0.10 in. of rain possible), rain and snow showers at night (0.10 in. of rain possible, snow level 500 ft.),
- Mostly cloudy with AM snow and rain showers likely (70%), a bit cooler with a slight (20%) chance of rain and snow showers Tuesday afternoon (snow level 500 ft.), then just partly cloudy Tuesday night.
- highs 52-42 lows 38-22.
- Partly cloudy and a bit warmer Wednesday and in the evening, mostly cloudy with a slight (20%) chance of rain and snow showers late Wednesday night (snow level 1,000 ft.),
- Mostly cloudy with a slight (20%) chance of AM rain and snow showers, a bit warmer with a (40%) chance of showers Thursday afternoon and evening, partly cloudy with a slight (20%) chance of showers late Thursday night,
- Clouds and sun with a slight (20%) chance of AM showers, a bit warmer with a (40%) chance of showers Friday afternoon, partly cloudy with a slight (20%) chance of evening showers, just mostly cloudy late Friday night,
- Mostly cloudy with a slight (20%) chance of AM showers, then a (40%) chance of showers Saturday afternoon.
- highs 43-48 lows 24-32 cooling to 28 Friday night. (seasonal averages high 51 low 35)
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Home Wood Heating Advisory:
Posted Daily
Eugene-Springfield: GREEN– Burning is Allowed.
Oakridge: GREEN– Burning is Allowed.
*Note: Pellet stoves may be used anytime if they produce no visible emissions.
Data courtesy of Lane Regional Air Protection Agency (LRAPA)
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Forecast for the Umpqua Valley including Roseburg:
- Mostly cloudy with patchy AM fog, sunny and a bit warmer this afternoon, partly cloudy with a (40%) chance of evening rain, mostly cloudy with patchy fog and a (40%) chance of rain late tonight,
- Mostly cloudy with AM showers and a slight (20%) chance of thunderstorms, colder with rain showers, snow showers and a slight (20%) chance of thunderstorms Monday afternoon (0.10 in. of rain possible) and at night (0.25 in. of rain possible),
- Mostly cloudy with AM rain and snow showers, rain and snow showers likely (70%) and a bit cooler Tuesday afternoon, partly cloudy with a slight (20%) chance of evening snow, then just partly cloudy and colder late Tuesday night.
- highs 55-40 lows 39-22.
- Some AM clouds, sunny and a bit warmer Wednesday afternoon, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of snow late Wednesday night,
- Mostly cloudy and a bit warmer with a slight (20%) chance of rain and snow Thursday and at night,
- Mostly cloudy and a bit warmer with a (30%) chance of rain and snow Friday, partly cloudy with a slight (20%) chance of evening rain, mostly cloudy with a slight (20%) chance of rain and snow Friday night,
- Mostly cloudy with a slight (20%) chance of AM rain and snow, then a slight (20%) chance of rain and a bit cooler Saturday afternoon.
- highs 44-52 cooling to 50 Saturday lows 26-30. (seasonal averages high 53 low 37)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Some AM clouds, sunny and a bit warmer this afternoon, mostly cloudy with a (30%) chance of coastal rain tonight while a (30%) chance off inland rain with patchy inland fog late tonight (under 0.10 in. of rain possible ),
- Mostly cloudy with coastal showers and and a slight (20%) chance of thunderstorms while inland AM showers and a slight (20%) chance of thunderstorms with inland showers, snow showers and a bit cooler with a slight (20%) chance of thunderstorms Monday afternoon (0.10 in. of rain possible), showers, snow showers and a slight (20%) chance of thunderstorms at night (0.25 in. of rain possible),
- Mostly cloudy with AM showers, snow showers and a slight (20%) chance of thunderstorms, a bit cooler with rain and snow showers likely (70%) Tuesday afternoon, decreasing clouds with a slight (20%) chance of evening rain and snow showers, then partly cloudy and colder late Tuesday night.
- highs 55-44 lows 39-27.
- Partly cloudy and a bit warmer Wednesday and in the evening, mostly cloudy with a slight (20%) chance of rain and snow late Wednesday night,
- Mostly cloudy with a (20%) chance of AM rain and snow, a (40%) chance of rain and a bit warmer Thursday afternoon, a good (50%) chance of rain at night,
- Mostly cloudy with a (40%) chance of rain Friday, a slight (20%) chance of rain Friday night,
- Mostly cloudy with a slight (20%) chance of AM rain and snow, then a slight (20%) chance of rain Saturday afternoon.
- highs 50-53 lows 30-35 cooling to 32 Friday night. (seasonal averages high 54 low 41)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly sunny start, partly cloudy and warmer this afternoon, partly cloudy with a slight (20%) chance of evening showers and snow showers late tonight (under 0.10 in. of rain possible, 1 in. of snow possible),
- Mostly cloudy with AM snow and rain showers, snow showers and a bit cooler with a slight (20%) chance of thunderstorms Monday afternoon and breezy (Wind: W 20-25 mph gusts to 40 mph in passes), snow showers Monday night and windy (Wind: W 20-30 mph gusts to 40 mph in the passes),
- Mostly cloudy with snow showers and cooler Tuesday, partly cloudy with a slight (20%) chance of evening snow showers, then just partly cloudy late Tuesday night.
- free air freezing level 7,500 ft. rising to 10,000 ft. this afternoon, snow level 4,500 ft. tonight, 3,000 ft. falling to falling to 2,000 ft. Monday afternoon, at the surface Monday night through Tuesday night.
- highs 48-23 lows 27-9.
- Mostly sunny and a bit warmer Wednesday, partly cloudy Wednesday night,
- Clouds and sun with a slight (20%) chance of AM snow showers, a mix of clouds and sun and a bit warmer with a (40%) chance of snow and rain showers Thursday afternoon, mostly cloudy with a (40%) chance of evening snow showers, just partly cloudy late Thursday night,
- Clouds and sun with a slight (20%) chance of AM snow showers, a mix of clouds and sun and a bit warmer with a slight (20%) chance of showers Friday afternoon, partly cloudy with a slight (20%) chance of evening showers, a slight (20%) chance of snow showers late Friday night,
- Clouds and sun with a slight (20%) chance of AM snow showers, then a mix of clouds and sun with a (40%) chance of rain and snow showers Saturday afternoon.
- free air freezing level at the surface Wednesday and Wednesday night, snow level 2,000 ft. Thursday, 2,500 ft. Thursday night and Friday, 3,000 ft. Friday night, then 2,500 ft. Saturday.
- highs 32-35 lows 15-22 cooling to 19 Friday night.
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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.
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Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.
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